Get down tonight! Set your K-tel Time-Travel Device to the 1970s and prepare to boogie! Naturally you'll need platform shoes and polyester bell-bottoms, with an Aubrey Beardsley peacock shirt open to the navel. Now add 19 necklaces with garish pendants, topped by a Pam Grier Autographed Afro. I'm talkin' about Shaft! Or rather about Herbie Hancock giving jazz the shaft. "Chameleon" shows his career-long adaptive advantage in camouflaging appearance to fit the environment. With jazz's audience shrunk to the capacity of a Volkswagen Bus, heeeere's Herbie alchemizing trendy electronic gadgetry and monotonous funk into fool's gold. Act now! Supplies are limited!